CN112152658A - Electronic equipment and protective sleeve - Google Patents
Electronic equipment and protective sleeve Download PDFInfo
- Publication number
- CN112152658A CN112152658A CN201910568322.9A CN201910568322A CN112152658A CN 112152658 A CN112152658 A CN 112152658A CN 201910568322 A CN201910568322 A CN 201910568322A CN 112152658 A CN112152658 A CN 112152658A
- Authority
- CN
- China
- Prior art keywords
- dielectric layer
- frequency signal
- antenna module
- radio frequency
- electronic device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
Abstract
The embodiment of the application provides electronic equipment and a protective sleeve. The electronic equipment comprises a first antenna module, a battery cover and a first medium layer, wherein the battery cover is arranged in an enclosing manner to form a containing space, and the first antenna module is positioned in the containing space; the first dielectric layer is located on one side of the battery cover, the first dielectric layer and the battery cover form a first matching layer, at least part of the first matching layer is located in a preset direction range of the first antenna module for receiving and transmitting a first radio-frequency signal, and performance parameters of the first matching layer are matched with a frequency band of the first radio-frequency signal so that the first radio-frequency signal is radiated out through the first matching layer, wherein the performance parameters comprise thickness and dielectric constant. The electronic equipment provided by the embodiment of the application has higher transmittance for the first radio frequency signal, and can enhance the radiation performance of the first antenna radiation module.
Description
Technical Field
The application relates to the technical field of electronics, especially, relate to an electronic equipment and protective sheath.
Background
The millimeter wave has the characteristics of high carrier frequency and large bandwidth, and is a main means for realizing 5G ultrahigh data transmission rate. Because the millimeter wave antenna is sensitive to the environment, for a millimeter wave antenna array of an electronic device, a coverage structure above the antenna array needs to be optimized to achieve better system radiation performance.
Disclosure of Invention
The embodiment of the application provides electronic equipment. The electronic device includes:
a first antenna module;
the battery cover is arranged in a surrounding mode to form a containing space, and the first antenna module is located in the containing space;
the first dielectric layer is positioned on one side of the battery cover, the first dielectric layer and the battery cover form a first matching layer, at least part of the first matching layer is positioned in a preset direction range of the first antenna module for receiving and transmitting a first radio-frequency signal, and performance parameters of the first matching layer are matched with a frequency band of the first radio-frequency signal so that the first radio-frequency signal is radiated out through the first matching layer, wherein the performance parameters comprise thickness and dielectric constant.
The electronic equipment provided by the embodiment of the application comprises a first antenna module, a battery cover and a first dielectric layer, wherein the battery cover is arranged in an enclosing manner to form an accommodating space, and the first antenna module is positioned in the accommodating space; the first dielectric layer is located on one side of the battery cover, the first dielectric layer and the battery cover form a first matching layer, at least part of the first matching layer is located in a preset direction range of the first antenna module for receiving and transmitting a first radio-frequency signal, and performance parameters of the first matching layer are matched with a frequency band of the first radio-frequency signal so that the first radio-frequency signal is radiated out through the first matching layer, wherein the performance parameters comprise thickness and dielectric constant. The electronic equipment that this application embodiment provided sets up first matching layer through the inside at the battery cover, and first matching layer includes first dielectric layer and battery cover, and at least part first matching layer is located the preset direction within range of first antenna module receiving and dispatching first radio frequency signal, and the performance parameter of first matching layer and first radio frequency signal's frequency channel phase-match, through the matching effect of first matching layer, can make first radio frequency signal pass more easily first dielectric layer with the battery cover radiates away. Therefore, the electronic device can have a higher transmittance for the first radio frequency signal, and the radiation performance of the first antenna radiation module can be enhanced.
The embodiment of the application also provides a protective sleeve. The protective sleeve is applied to the electronic equipment provided by any embodiment, the side, away from the first antenna module, of the battery cover is sleeved with the protective sleeve, and the protective sleeve forms the first dielectric layer.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an isometric view of an electronic device provided in an embodiment of the present application.
Fig. 2 is a schematic structural diagram of an AA cross-sectional view of one of the electronic devices provided in fig. 1.
Fig. 3 is a schematic structural diagram of an AA cross-sectional view of another electronic device provided in fig. 1.
Fig. 4 is a schematic structural diagram of an AA cross-sectional view of yet another electronic device provided in fig. 1.
Fig. 5 is a schematic structural diagram of an AA cross-sectional view of yet another electronic device provided in fig. 1.
Fig. 6 is a schematic structural diagram of an AA cross-sectional view of yet another electronic device provided in fig. 1.
Fig. 7 is a schematic structural diagram of an AA cross-sectional view of yet another electronic device provided in fig. 1.
Fig. 8 is a schematic structural diagram of an AA cross-sectional view of yet another electronic device provided in fig. 1.
Fig. 9 is a schematic structural diagram of an AA cross-sectional view of yet another electronic device provided in fig. 1.
Fig. 10 is a schematic structural diagram of an AA cross-sectional view of yet another electronic device provided in fig. 1.
Fig. 11 is a schematic structural diagram of an AA cross-sectional view of yet another electronic device provided in fig. 1.
Fig. 12 is a schematic structural diagram of an AA cross-sectional view of yet another electronic device provided in fig. 1.
Fig. 13 is a schematic structural diagram of a protective cover applied to an electronic device according to an embodiment of the present application.
Fig. 14 is a schematic diagram of S11 curve of the protective cover of the present application after being applied to the joint simulation of the electronic device.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive effort based on the embodiments in the present application are within the scope of protection of the present application.
Referring to fig. 1 and fig. 2, an electronic device 10 according to an embodiment of the present disclosure includes a first antenna module 110, a battery cover 200 and a first dielectric layer 310, where the battery cover 200 encloses a receiving space a, and the first antenna module 110 is located in the receiving space a; the first dielectric layer 310 is located on one side of the battery cover 200, the first dielectric layer 310 and the battery cover 200 form a first matching layer 1000, at least part of the first matching layer 1000 is located within a preset direction range in which the first antenna module 110 receives and transmits a first radio frequency signal, and a performance parameter of the first matching layer 1000 is matched with a frequency band of the first radio frequency signal, so that the first radio frequency signal is radiated through the first matching layer 1000, wherein the performance parameter includes a thickness dimension and a dielectric constant.
The first antenna module 110 may be a millimeter wave module, and the first radio frequency signal may be a millimeter wave signal.
Further, the first antenna module 110 includes one or more antenna radiators. When the first antenna module 110 includes a plurality of antenna radiators, the plurality of antenna radiators are arranged in an array. The first antenna module 110 may be a 2 × 2 antenna array or a 1 × 4 antenna array.
Usually, the millimeter wave band is 30 GHz-300 GHz, and the corresponding wavelength is 1 mm-10 mm. The antenna radiator may be a patch antenna, a plurality of antenna radiators are arranged in an array to form the first antenna module 110, and the antenna radiator may be a millimeter wave antenna. The patch antenna is a pie-shaped directional antenna, which is formed by two metal plates (one of which is larger than the other) which are superposed, and a sheet dielectric is arranged in the middle of the two metal plates. The patch antenna creates a hemispherical coverage area that spreads from the mounting point over a range of 30 degrees to 180 degrees. Since the millimeter wave antenna array is very sensitive to the material covering the direction in which it receives and transmits millimeter wave signals, if the millimeter wave antenna array is directly placed in the electronic device 10, a series of problems such as impedance mismatch, frequency offset, gain drop, etc. may be caused. Therefore, it is necessary to optimize the performance of the material covering the direction in which the millimeter wave antenna array receives and transmits the millimeter wave signal, so as to reduce the influence of the material covering the direction in which the millimeter wave antenna array receives and transmits the millimeter wave signal on the millimeter wave antenna array. For the electronic device 10, the material covering the direction in which the millimeter wave antenna array receives and transmits the millimeter wave signal is the battery cover 200, and therefore, performance parameters of the battery cover 200 need to be optimized to reduce adverse effects of the battery cover 200 on the millimeter wave antenna array.
The material of the battery cover 200 is any one or more of plastic, glass, sapphire and ceramic. A first dielectric layer 310 is disposed on one side of the battery cover 200, the battery cover 200 and the first dielectric layer 310 together form a first matching layer 1000, the first antenna module 110 and the first matching layer 1000 are disposed at an interval, at least a portion of the first dielectric layer 310 and at least a portion of the battery cover 200 are located within a preset direction range in which the first antenna module 110 receives and transmits a first radio frequency signal, and performance parameters of at least a portion of the first dielectric layer 310 and at least a portion of the battery cover 200 are matched with a frequency band of the first radio frequency signal, so that the first radio frequency signal can be radiated through at least a portion of the first dielectric layer 310 and at least a portion of the battery cover 200. Wherein the performance parameters include a thickness dimension and a dielectric constant.
Specifically, the thickness and the dielectric constant of the first dielectric layer 310 and the thickness and the dielectric constant of the battery cover 200 are used together to match the frequency band of the first antenna module 110 for receiving and transmitting the first radio frequency signal, so as to improve the transmittance of the first radio frequency signal with respect to the first dielectric layer 310 and the battery cover 200.
Further, the thickness of the first dielectric layer 310 is an odd multiple of the wavelength of 1/4 dielectric. The medium wavelength is the wavelength of the first radio frequency signal when the first radio frequency signal propagates in the first medium layer. When the thickness of the first dielectric layer 310 is an odd multiple of the wavelength of 1/4 media, it is similar to 1/4 impedance transformation.
In one embodiment, the performance parameter of the first matching layer 1000 and the frequency band of the first rf signal satisfy the following formula:
so that the performance parameters of the first matching layer 1000 match the frequency band of the first radio frequency signal, where d1Is the thickness of the first dielectric layer 310, d2Is the thickness of the cell cover 200, f1Is the frequency band (GHz), D, of the first radio frequency signalk1Is the dielectric constant, D, of the first dielectric layer 310k2θ is an angle at which the first antenna module 110 receives and transmits the first radio frequency signal, i.e., a scanning angle of the first antenna module 110 relative to a main direction, which is a direction pointed by a main lobe beam of the first antenna module 110, where m is a positive odd number.
In particular, for a thickness d1Dielectric constant of DkThe characteristic matrix of the single-layer dielectric layer is as follows:
wherein the content of the first and second substances,
an equivalent admittance of
For the purpose of the vertical polarization,
for the purpose of the horizontal polarization,
with the above equivalent admittance, it can be derived1When m × pi, ηeff＝η1 2/η0Where m is an odd number of 1,3,5,7 …, etc., i.e., similar to 1/4 impedance transformation when the first dielectric layer 310 is an odd multiple of 1/4 of the dielectric wavelength.
Assume that the dielectric constant of the first dielectric layer 310 in the cell cover 200 is Dk1Thickness in the vertical direction of d1Dielectric constant D of cell cover 200k2Thickness in the vertical direction of d2. Thus deducing that f is satisfied1The thicknesses of the cell cover 200 and the first dielectric layer 310 at the frequency are:
that is, when the thickness d of the first dielectric layer 310 is larger1And dielectric constant Dk1Thickness d of the cell cover 2002And dielectric constant Dk2When the above formula is satisfied, the performance parameters of the first dielectric layer 310, the battery cover 200 and the frequency band f of the first rf signal1At this time, the first rf signal has a higher transmittance for the first dielectric layer 310 and the battery cover 200, which is helpful for increasing the radiation gain of the first antenna module 110.
In the conventional method, a battery cover 200 is not used for performing spatial impedance matching on the antenna module, but only a thick dielectric layer is used for performing spatial impedance matching on the antenna module prepared by a High Density Interconnect (HDI) process, and the electronic device 10 of the present application performs spatial impedance matching on a first radio frequency signal in a target frequency band received and transmitted by the first antenna module 110 by using the battery cover 200 of the electronic device 10 and the first dielectric layer 310, so that the first antenna module 110 can be designed to be thin, which is beneficial to the light and thin design of the electronic device 10, and can enhance the radiation gain of the first antenna module 110.
The electronic device 10 provided by the embodiment of the application comprises a first antenna module 110, a battery cover 200 and a first dielectric layer 310, wherein the battery cover 200 is enclosed to form an accommodating space a, and the first antenna module 110 is located in the accommodating space a; the first dielectric layer 310 is located on one side of the battery cover 200, the first dielectric layer 310 and the battery cover 200 form a first matching layer 1000, at least part of the first matching layer 1000 is located within a preset direction range in which the first antenna module 110 receives and transmits a first radio frequency signal, and a performance parameter of the first matching layer 1000 is matched with a frequency band of the first radio frequency signal, so that the first radio frequency signal is radiated through the first matching layer 1000, wherein the performance parameter includes a thickness dimension and a dielectric constant. The electronic device 10 provided by the embodiment of the application is provided with the first matching layer 1000 inside the battery cover 200, the first matching layer 1000 comprises the first dielectric layer 310 and the battery cover 200, at least part of the first matching layer 1000 is located in the preset direction range of the first antenna module 110 for receiving and transmitting the first radio frequency signal, the performance parameter of the first matching layer 1000 is matched with the frequency band of the first radio frequency signal, and through the matching effect of the first matching layer 1000, the first radio frequency signal can more easily pass through the first dielectric layer 310 and the battery cover 200 to be radiated out. Therefore, the electronic device 10 can have a higher transmittance for the first radio frequency signal, and the radiation performance of the first antenna radiation module can be enhanced.
Referring to fig. 3, the battery cover 200 includes a back plate 210 and a side plate 220 surrounding the back plate 210, the first dielectric layer 310 is located on one side of the back plate 210, the first dielectric layer 310 and the back plate 210 are located in a direction range in which the first antenna module 110 receives and transmits the first radio frequency signal, and the performance parameter of the whole of the first dielectric layer 310 and the back plate 210 is matched with the frequency band of the first radio frequency signal.
Specifically, when the first antenna module 110 radiates a first radio frequency signal in a direction toward the battery cover 200 and the first dielectric layer 310, and the thickness and the dielectric constant of the back plate 210 and the thickness and the dielectric constant of the first dielectric layer 310 satisfy the above formula, it is considered that the performance parameter of the whole of the first dielectric layer 310 and the back plate 210 is matched with the frequency band of the first radio frequency signal radiated by the first antenna module 110, and at this time, the interference of the back plate 210 and the first dielectric layer 310 on the first antenna module 110 is small, so that the first antenna module 110 can be ensured to have good radiation performance. The first antenna module 110 may be configured to receive a first radio frequency signal and may also be configured to transmit the first radio frequency signal.
Referring to fig. 4, in one embodiment, the first dielectric layer 310 extends toward a side away from the first antenna module 110 relative to the back plate 210.
The first dielectric layer 310 may be a rectangular block, an arc block, or another structural shape, and it is only necessary that the total thickness of the first dielectric layer 310 and the battery cover 200 is matched with the frequency band of the first millimeter wave signal.
Specifically, the battery cover 200 has a first surface 200a and a second surface 200b that are disposed opposite to each other, the first surface 200a forms a part of an external surface of the electronic device 10, the second surface 200b is a part of an internal surface of the electronic device 10, and the first dielectric layer 310 is protruded from the first surface 200a, so that the total thickness of the battery cover 200 and the first dielectric layer 310 is matched with a frequency band of the first antenna module 110 for radiating the first radio frequency signal, and at this time, the influence of the back plate 210 on the first antenna module 110 for radiating the first radio frequency signal can be reduced. And because the first medium layer 310 protrudes toward the outside of the electronic device 10 relative to the battery cover 200, the first medium layer does not occupy the internal space of the electronic device 10, so that the main body of the electronic device 10 is lighter and thinner.
Further, the back plate 210 and the first antenna module 110 are arranged at an interval, the first dielectric layer 310 is located on one side of the back plate 210 away from the first antenna module 110, that is, the first dielectric layer 310 is protruded from one side of the back plate 210 away from the first antenna module 110, and when the electronic device 10 is sleeved with a protective shell, the protective shell can serve as the first dielectric layer 310, so that spatial impedance matching can be performed on the first antenna module 110 by means of a structure in an application scene of the electronic device 10, and the penetrating capability of the first radio frequency signal is improved.
Referring to fig. 5, in another embodiment, the first dielectric layer 310 extends toward a side close to the first antenna module 110 relative to the back plate 210.
Specifically, the battery cover 200 has a first surface 200a and a second surface 200b that are disposed opposite to each other, where the first surface 200a forms a part of an external surface of the electronic device 10, the second surface 200b is a part of an internal surface of the electronic device 10, the second surface 200b is a surface of the battery cover 200 close to the first antenna module 110, and the first dielectric layer 310 is protruded from the second surface 200b, that is, the first dielectric layer 310 is protruded toward a side of the battery cover 200 close to the first antenna module 110, so that the total thickness of the battery cover 200 and the first dielectric layer 310 is matched with a frequency band of the first antenna module 110 that radiates the first radio frequency signal, and at this time, the influence of the back plate 210 on the radiation of the first radio frequency signal by the first antenna module 110 can be reduced. Moreover, the first medium layer 310 protrudes towards the inside of the electronic device 10 relative to the battery cover 200, so that the appearance of the electronic device 10 is not affected, and the problem of uniformity of the appearance of the electronic device 10 is improved.
Referring to fig. 6, the electronic device 10 further includes a second dielectric layer 320, the second dielectric layer 320 is located on a side of the battery cover 200 away from the first dielectric layer 310, at least a portion of the second dielectric layer 320 is located within a preset direction range in which the first antenna module 110 receives and transmits a first radio frequency signal, and a performance parameter of an integral body formed by the second dielectric layer 320 and the first matching layer 1000 is matched with a frequency band of the first radio frequency signal, so that the first radio frequency signal is radiated through the second dielectric layer 320 and the first matching layer 1000.
Specifically, the first dielectric layer 310 and the second dielectric layer 320 are respectively located on two opposite sides of the battery cover 200, at least part of the first dielectric layer 310, at least part of the battery cover 200, and at least part of the second dielectric layer 320 are located within a preset direction range in which the first antenna module 110 receives and transmits the first radio frequency signal, and the performance parameters of the whole formed by the first dielectric layer 310, the battery cover 200, and the second dielectric layer 320 are matched with the frequency band of the first radio frequency signal, so that the penetrating ability of the first radio frequency signal for the first dielectric layer 310, the battery cover 200, and the second dielectric layer 320 can be improved, and the radiation gain of the first antenna module 110 is enhanced.
Further, the performance parameters of the first matching layer 1000 and the second dielectric layer 320 and the frequency band of the first radio frequency signal satisfy the following formula:
so that the performance parameters of the first matching layer 1000 and the second dielectric layer 320 are matched with the frequency band of the first rf signal, where d1Is the thickness of the first dielectric layer 310, d2Is the thickness of the cell cover 200, d3Is the thickness of the second dielectric layer 320, f1Is the frequency band (GHz), D, of the first radio frequency signalk1Is the dielectric constant, D, of the first dielectric layer 310k2Is the dielectric constant of the cell cover 200, Dk3θ is the angle at which the first antenna module 110 receives and transmits the first radio frequency signal, i.e., the scanning angle of the first antenna module 110 with respect to the main direction, which is the direction pointed by the main lobe beam of the first antenna module 110, where m is a positive odd number.
That is, when the thickness d of the first dielectric layer 310 is larger1And dielectric constant Dk1Thickness d of the cell cover 2002And dielectric constant Dk2Thickness d of the second dielectric layer 3203And dielectric constant Dk3When the above formula is satisfied, the performance parameters of the first dielectric layer 310, the battery cover 200, and the second dielectric layer 320 are satisfiedParameters and frequency band f of first radio frequency signal1At this time, the first rf signal has a stronger transmittance with respect to the first dielectric layer 310, the battery cover 200 and the second dielectric layer 320, which is helpful for increasing the radiation gain of the first antenna module 110.
Referring to fig. 7, the electronic device 10 further includes a second antenna module 120, the second antenna module 120 is located in the accommodating space a, the second dielectric layer 320 and the battery cover 200 form a second matching layer 2000, at least a portion of the second matching layer 2000 is located in a preset direction range in which the second antenna module 120 receives and transmits a second radio frequency signal, and a performance parameter of the second matching layer 2000 is matched with a frequency band of the second radio frequency signal, so that the second radio frequency signal is radiated through the second matching layer 2000.
In one embodiment, the frequency band of the second rf signal is different from the frequency band of the first rf signal. The first rf signal may be a low frequency signal, the second rf signal may be a high frequency signal, and the first antenna module 110 and the second antenna module 120 may be applied to different application scenarios. The plurality of different frequency bands may be respectively used to implement different functions, such as mobile communication, proximity detection, gesture detection, biometric identification, imaging detection, positioning navigation, and the like, thereby widening the application range of the electronic device 10. For example, when the frequency of the first antenna module 110 receiving and transmitting the first radio frequency signal is 28GHz, and the frequency of the second antenna module 120 receiving and transmitting the second radio frequency signal is 60GHz, the first antenna module corresponds to the radio frequency communication antenna module and the gesture recognition antenna module. When the frequency of the first antenna module 110 receiving and transmitting the first radio frequency signal is 39GHz and the frequency of the second antenna module 120 receiving and transmitting the second radio frequency signal is 77GHz, the former corresponds to the radio frequency communication antenna module, and the latter corresponds to the automobile radar antenna module and the gesture recognition antenna module.
Further, when the second dielectric layer 320 satisfies the same formula as the first dielectric layer 310 and the battery cover 200 satisfies the formula, it is determined that the performance parameter of the second dielectric layer 320 and the performance parameter of the battery cover 200 are matched with the frequency band of the second rf signal, and at this time, the penetrating power of the second rf signal can be improved, which is beneficial to improving the radiation gain of the second antenna module 120.
Referring to fig. 8, the electronic device 10 further includes a main board 400, the main board 400 is located in the accommodating space a, the first antenna module 110 and the second antenna module 120 are electrically connected to the main board 400, and the main board 400 is provided with a ground to suppress radiation of the first radio frequency signal and the second radio frequency signal toward a side of the main board 400 away from the battery cover 200.
The main board 400 may be a PCB board of the electronic device 10. The first antenna module 110 and the second antenna module 120 are electrically connected to the main board 400. Under the control of the main board 400, the first antenna module 110 and the second antenna module 120 can transmit and receive radio frequency signals through the battery cover 200 and the first dielectric layer 310, so that the penetrability of the radio frequency signals can be enhanced, and the radio frequency signals have higher penetrability when passing through the battery cover 200 and the first dielectric layer 310.
Further, a ground is disposed on the main board 400 to ground components in the first antenna module 110 and the second antenna module 120, which is helpful for eliminating static electricity. Moreover, because the area of the main board 400 is large, the radiation of the first radio frequency signal transmitted by the first antenna module 110 and the second radio frequency signal transmitted by the second antenna module 120 towards the side of the main board 400 away from the battery cover 200 can be inhibited, and the display screen is usually arranged on the side of the main board 400 away from the battery cover 200, so that the interference of the first radio frequency signal and the second radio frequency signal on the display function of the display screen is avoided.
Referring to fig. 9, the battery cover 200 includes a back plate 210 and a side plate 220 surrounding the back plate 210, the side plate 220 is located in a direction range in which the first antenna module 110 receives and transmits the first rf signal, and a performance parameter of an entirety formed by the side plate 220 and the first dielectric layer 310 is matched with a frequency band of the first rf signal, so that the first rf signal is radiated through the side plate 220 and the first dielectric layer 310.
When the side plate 220 satisfies the same formula as the battery cover 200 and the first dielectric layer 310 satisfies the formula, it is determined that the performance parameter of the first dielectric layer 310 and the performance parameter of the side plate 220 are matched with the frequency band of the first rf signal, and at this time, the side plate 220 and the first dielectric layer 310 are used for performing spatial impedance matching on the first rf signal, so that the penetration capability of the first rf signal can be improved, and the radiation gain of the first antenna module 110 can be improved.
Referring to fig. 10, the electronic device 10 further includes a third antenna module 130 and a third dielectric layer 330, the side plate 220 is located in a direction range in which the third antenna module 130 receives and transmits a third radio frequency signal, at least a portion of the third dielectric layer 330 and at least a portion of the first dielectric layer 310 are located in a direction range in which the third antenna module 130 receives and transmits the third radio frequency signal, and an overall performance parameter formed by the third dielectric layer 330, the side plate 220, and the first dielectric layer 310 is matched with a frequency band of the third radio frequency signal, so that the third radio frequency signal is radiated through the third dielectric layer 330, the side plate 220, and the first dielectric layer 310.
Wherein a frequency band of the third radio frequency signal is different from a frequency band of the first radio frequency signal. In an embodiment, the first rf signal may be a low frequency signal, the third rf signal may be a high frequency signal, and the first antenna module 110 and the third antenna module 130 may be applied to different application scenarios. The plurality of different frequency bands may be respectively used to implement different functions, such as mobile communication, proximity detection, gesture detection, biometric identification, imaging detection, positioning navigation, and the like, thereby widening the application range of the electronic device 10. For example, when the frequency of the first antenna module 110 receiving and transmitting the first radio frequency signal is 28GHz, and the frequency of the third antenna module 130 receiving and transmitting the third radio frequency signal is 60GHz, the first antenna module corresponds to the radio frequency communication antenna module and the gesture recognition antenna module. When the frequency of the first antenna module 110 receiving and transmitting the first rf signal is 39GHz and the frequency of the third antenna module 130 receiving and transmitting the third rf signal is 77GHz, the former corresponds to the rf communication antenna module and the latter corresponds to the car radar antenna module and the gesture recognition antenna module.
In one embodiment, the performance parameter of the whole formed by the third dielectric layer 330, the side plate 220 and the first dielectric layer 310 and the frequency band of the third rf signal satisfy the following formula:
so that the performance parameters of the first matching layer 1000 match the frequency band of the first radio frequency signal, where d1Is the thickness of the first dielectric layer 310, d22Is the thickness of the side plate 220, d33Is the thickness of the third dielectric layer 330, f1Is the frequency band (GHz), D, of the first radio frequency signalk1Is the dielectric constant, D, of the first dielectric layer 310k22Is the dielectric constant of the side plate 220, Dk33θ is the angle at which the third antenna module 130 receives and transmits the third radio frequency signal, that is, the scanning angle of the third antenna module 130 relative to the main direction, which is the direction pointed by the main lobe beam of the third antenna module 130, where m is a positive odd number.
That is, when the thickness d of the first dielectric layer 310 is larger1And dielectric constant Dk1Thickness d of side plate 22022And dielectric constant Dk22Thickness d of the third medium33And dielectric constant Dk33When the above formula is satisfied, the performance parameters of the first dielectric layer 310, the battery cover 200, the third dielectric layer 330, and the frequency band f of the third rf signal1At this time, the third rf signal has a stronger transmittance with respect to the first dielectric layer 310, the battery cover 200 and the third dielectric layer 330, which is helpful for increasing the radiation gain of the third antenna module 130.
Referring to fig. 11, the electronic device 10 further includes a fourth antenna module 140, the back plate 210 is located in a direction range in which the fourth antenna module 140 receives and transmits a fourth radio frequency signal, and at least a portion of the first dielectric layer 310 is located in the direction range in which the fourth antenna module 140 receives and transmits the fourth radio frequency signal, and a performance parameter of an entirety formed by the back plate 210 and the first dielectric layer 310 is matched with a frequency band of the fourth radio frequency signal, so that the fourth radio frequency signal is radiated through the back plate 210 and the first dielectric layer 310.
Wherein a frequency band of the fourth radio frequency signal is different from a frequency band of the first radio frequency signal. In an embodiment, the first rf signal may be a high frequency signal, the fourth rf signal may be a low frequency signal, and the first antenna module 110 and the fourth antenna module 140 may be applied to different application scenarios. The plurality of different frequency bands may be respectively used to implement different functions, such as mobile communication, proximity detection, gesture detection, biometric identification, imaging detection, positioning navigation, and the like, thereby widening the application range of the electronic device 10. For example, when the frequency of the first antenna module 110 receiving and transmitting the first rf signal is 28GHz, and the frequency of the fourth antenna module 140 receiving and transmitting the fourth rf signal is 60GHz, the first antenna module corresponds to the rf communication antenna module and the gesture recognition antenna module. When the frequency of the first antenna module 110 receiving and transmitting the first rf signal is 39GHz and the frequency of the fourth antenna module 140 receiving and transmitting the fourth rf signal is 77GHz, the former corresponds to the rf communication antenna module, and the latter corresponds to the car radar antenna module and the gesture recognition antenna module.
When the back plate 210 satisfies the formula same as the battery cover 200 and the first dielectric layer 310 satisfies the formula, it is determined that the performance parameter of the first dielectric layer 310 and the performance parameter of the back plate 210 are matched with the frequency band of the fourth rf signal, and at this time, the back plate 210 and the first dielectric layer 310 are used for performing spatial impedance matching on the fourth rf signal, so that the penetration capability of the fourth rf signal can be improved, and the radiation gain of the fourth antenna module 140 can be improved.
Further, the thickness of the first dielectric layer 310 is an odd multiple of the wavelength of 1/4 dielectric. The medium wavelength is a wavelength when the fourth radio frequency signal propagates in the first medium layer. When the thickness of the first dielectric layer 310 is an odd multiple of the wavelength of 1/4 media, it is similar to 1/4 impedance transformation.
Referring to fig. 12, the battery cover 200 includes a back plate 210 and a side plate 220 surrounding the back plate 210, the back plate 210 includes a matching portion 211 and a supporting portion 212 disposed around the matching portion 211, the supporting portion 212 is connected to the side plate 220, the matching portion 211 is located in a direction range where the first antenna module 110 receives and transmits the first radio frequency signal, and an overall performance parameter formed by the matching portion 211 and the first dielectric layer 310 is matched with a frequency band of the first radio frequency signal, so that the first radio frequency signal is radiated through the matching portion 211 and the first dielectric layer 310.
In one embodiment, the thicknesses of the matching portion 211 and the supporting portion 212 are consistent, which helps to ensure that the thickness of the back plate 210 is uniform, thereby improving the stress concentration and helping to ensure the strength of the back plate 210. The matching portion 211 and the supporting portion 212 are local structures of the back plate 210, the supporting portion 212 is connected between the matching portion 211 and the side plate 220, the matching portion 211 and the first dielectric layer 310 are located within a preset direction range in which the first antenna module 110 receives and transmits the first radio frequency signal, and the performance parameter of the matching portion 211 and the performance parameter of the first dielectric layer 310 are matched with the frequency band of the first radio frequency signal, so that the penetrating capability of the first radio frequency signal for the matching portion 211 and the first dielectric layer 310 can be improved, and the radiation gain of the first antenna module 110 is improved.
With continued reference to fig. 13, the present embodiment further provides a protective sheath 20. The protective cover 20 is applied to the electronic device 10 provided in any of the above embodiments, the protective cover 20 is sleeved on a side of the battery cover 200 away from the first antenna module 110, and the protective cover 20 forms the first dielectric layer 310.
Specifically, when the first antenna module 110 faces the protective cover 20, the protective cover 20 may be used to perform spatial impedance matching on the radio frequency signal received and transmitted by the first antenna module 110, and at this time, the protective cover 20 is used as the first dielectric layer 310. When the performance parameter of the protective cover 20 and the performance parameter of the battery cover 200 are matched with the frequency band of the first rf signal, the first rf signal transmitted and received by the first antenna module 110 may be transmitted through the battery cover 200 and the protective cover 20. The protective cover 20 serving as the first dielectric layer 310 is matched with the battery cover 200 for performing spatial impedance matching on the first antenna module 110, and the structural arrangement of the first antenna module 110 in the use environment of the electronic device 10 is fully considered, so that the radiation effect of the first antenna module 110 in the use environment of the whole electronic device can be ensured.
Referring to fig. 14, fig. 14 is a graph of S11 after the protective cover of the present application is applied to an electronic device co-simulation.
As can be seen, for the first antenna module 110 operating in the 28GHz band, the dielectric constant D is coveredkA sapphire cell cover of thickness d of 10.920.8mm, the second surface 200b of the cell cover 200 has a dielectric constant Dk3.5 thick first dielectric layer11.43mm, the first surface 200a of the battery cover 200 is a protective cover DkWhen the thickness is 3.1 and 1.5mm, the thickness corresponds to the thickness when the above formula m is 1, and the first antenna module 110 is almost identical to S11 of the free space.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (18)
1. An electronic device, characterized in that the electronic device comprises:
a first antenna module;
the battery cover is arranged in a surrounding mode to form a containing space, and the first antenna module is located in the containing space;
the first dielectric layer is positioned on one side of the battery cover, the first dielectric layer and the battery cover form a first matching layer, at least part of the first matching layer is positioned in a preset direction range of the first antenna module for receiving and transmitting a first radio-frequency signal, and performance parameters of the first matching layer are matched with a frequency band of the first radio-frequency signal so that the first radio-frequency signal is radiated out through the first matching layer, wherein the performance parameters comprise thickness and dielectric constant.
2. The electronic device of claim 1, wherein the performance parameter of the first matching layer and the frequency band of the first radio frequency signal satisfy the formula:
so that the performance parameter of the first matching layer matches the frequency band of the first radio frequency signal, wherein d1Is the thickness of the first dielectric layer, d2Is the thickness of the cell cover, f1Is the frequency band (GHz), D, of the first radio frequency signalk1Is the dielectric constant of the first dielectric layer, Dk2Theta is a scanning angle of the first antenna module relative to a main direction, which is a direction pointed by a main lobe beam of the first antenna module, and m is a positive odd number.
3. The electronic device of claim 1, wherein the battery cover includes a back plate and a side plate surrounding the back plate, the first dielectric layer is located on one side of the back plate, the first dielectric layer and the back plate are located within a range of directions in which the first antenna module receives and transmits the first radio frequency signal, and an overall performance parameter of the first dielectric layer and the back plate matches a frequency band of the first radio frequency signal.
4. The electronic device of claim 3, wherein the first dielectric layer extends relative to the backplane toward a side facing away from the first antenna module.
5. The electronic device of claim 3, wherein the first dielectric layer extends toward a side proximate to the first antenna module relative to the backplane.
6. The electronic device of claim 1, further comprising a second dielectric layer, wherein the second dielectric layer is located on a side of the battery cover away from the first dielectric layer, at least a portion of the second dielectric layer is located within a preset direction range in which the first antenna module receives and transmits a first radio frequency signal, and an overall performance parameter formed by the second dielectric layer and the first matching layer is matched with a frequency band of the first radio frequency signal, so that the first radio frequency signal is radiated through the second dielectric layer and the first matching layer.
7. The electronic device according to claim 6, further comprising a second antenna module, wherein the second antenna module is located in the receiving space, the second dielectric layer and the battery cover form a second matching layer, at least a portion of the second matching layer is located in a preset directional range in which the second antenna module receives and transmits a second radio frequency signal, and a performance parameter of the second matching layer is matched with a frequency band of the second radio frequency signal, so that the second radio frequency signal is radiated through the second matching layer.
8. The electronic device according to claim 7, further comprising a main board, wherein the main board is located in the accommodating space, the first antenna module and the second antenna module are electrically connected to the main board, and the main board is provided with a ground to suppress radiation of the first radio frequency signal and the second radio frequency signal toward a side of the main board away from the battery cover.
9. The electronic device of claim 1, wherein the first dielectric layer has a thickness that is an odd multiple of a wavelength of 1/4 media.
10. The electronic device of claim 1, wherein the battery cover includes a back plate and a side plate surrounding the back plate, the side plate is located within a range of directions in which the first antenna module receives and transmits the first radio frequency signal, and a performance parameter of an entirety formed by the side plate and the first dielectric layer matches a frequency band of the first radio frequency signal, so that the first radio frequency signal is radiated through the side plate and the first dielectric layer.
11. The electronic device of claim 10, further comprising a third antenna module and a third dielectric layer, wherein the side plate is located in a direction range in which the third antenna module receives and transmits a third radio frequency signal, and at least a portion of the third dielectric layer and at least a portion of the first dielectric layer are located in a direction range in which the third antenna module receives and transmits the third radio frequency signal, and an overall performance parameter formed by the third dielectric layer, the side plate, and the first dielectric layer matches a frequency band of the third radio frequency signal, so that the third radio frequency signal is radiated through the third dielectric layer, the side plate, and the first dielectric layer.
12. The electronic device of claim 11, wherein the performance parameter of the whole formed by the third dielectric layer, the side plate and the first dielectric layer and the frequency band of the third radio frequency signal satisfy the formula:
so that the performance parameter of the first matching layer matches the frequency band of the first radio frequency signal, wherein d1Is the thickness of the first dielectric layer, d22Is the thickness of the side plate, d33Is the thickness of the third dielectric layer, f1Is the frequency band (GHz), D, of the first radio frequency signalk1Is the dielectric constant of the first dielectric layer, Dk22Is the dielectric constant of the side plate, Dk33Is the medium of the third dielectric layerAnd the electrical constant is theta which is the angle of the third antenna module for receiving and transmitting the third radio frequency signal, and m is a positive odd number.
13. The electronic device of claim 11, wherein a frequency band of the third radio frequency signal is different from a frequency band of the first radio frequency signal.
14. The electronic device of claim 10, further comprising a fourth antenna module, wherein the backplane is located within a direction range in which the fourth antenna module receives and transmits a fourth rf signal, and at least a portion of the first dielectric layer is located within a direction range in which the fourth antenna module receives and transmits the fourth rf signal, and an overall performance parameter formed by the backplane and the first dielectric layer is matched with a frequency band of the fourth rf signal, so that the fourth rf signal is radiated through the backplane and the first dielectric layer.
15. The electronic device of claim 14, wherein the first dielectric layer has a thickness that is an odd multiple of a wavelength of 1/4 media.
16. The electronic device of claim 1, wherein the battery cover includes a back plate and a side plate surrounding the back plate, the back plate includes a matching portion and a supporting portion surrounding the matching portion, the supporting portion is connected to the side plate, the matching portion is located in a range of directions in which the first antenna module receives and transmits the first radio frequency signal, and an overall performance parameter formed by the matching portion and the first dielectric layer matches with a frequency band of the first radio frequency signal, so that the first radio frequency signal is radiated through the matching portion and the first dielectric layer.
17. The electronic device of claim 16, wherein the matching portion and the support portion maintain a uniform thickness.
18. A protective cover applied to the electronic device as claimed in any one of claims 1 to 17, wherein the protective cover is disposed on a side of the battery cover facing away from the first antenna module, and the protective cover forms the first dielectric layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910568322.9A CN112152658B (en) | 2019-06-27 | 2019-06-27 | Electronic equipment and protective sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910568322.9A CN112152658B (en) | 2019-06-27 | 2019-06-27 | Electronic equipment and protective sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112152658A true CN112152658A (en) | 2020-12-29 |
| CN112152658B CN112152658B (en) | 2022-07-08 |
Family
ID=73868846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910568322.9A Active CN112152658B (en) | 2019-06-27 | 2019-06-27 | Electronic equipment and protective sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112152658B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5870057A (en) * | 1994-12-08 | 1999-02-09 | Lucent Technologies Inc. | Small antennas such as microstrip patch antennas |
| CN101595595A (en) * | 2006-11-15 | 2009-12-02 | 皮尔金顿汽车德国有限公司 | Antenna connector |
| CN105655706A (en) * | 2016-03-18 | 2016-06-08 | 广东欧珀移动通信有限公司 | Metal terminal rear cover and terminal |
| CN106357848A (en) * | 2016-10-11 | 2017-01-25 | 努比亚技术有限公司 | Protective casing |
| US20180109295A1 (en) * | 2016-03-03 | 2018-04-19 | Lg Electronics Inc. | Mobile terminal |
| CN208127408U (en) * | 2018-04-28 | 2018-11-20 | Oppo广东移动通信有限公司 | Electronic device |
| CN108923119A (en) * | 2018-07-10 | 2018-11-30 | Oppo广东移动通信有限公司 | Electronic equipment |
| CN109103589A (en) * | 2018-08-12 | 2018-12-28 | 瑞声科技（南京）有限公司 | Antenna modules and mobile terminal |
| CN208386865U (en) * | 2018-05-31 | 2019-01-15 | Oppo广东移动通信有限公司 | Wireless headset |
| US20190051989A1 (en) * | 2017-08-11 | 2019-02-14 | Samsung Electro Mechanics Co., Ltd. | Antenna module |
| TW201909475A (en) * | 2017-07-18 | 2019-03-01 | 南韓商三星電機股份有限公司 | Antenna module and manufacturing method thereof |
| CN109616765A (en) * | 2018-12-25 | 2019-04-12 | 深圳市万普拉斯科技有限公司 | Antenna casing adjusting method, device and mobile terminal |
| CN209517229U (en) * | 2019-04-30 | 2019-10-18 | Oppo广东移动通信有限公司 | Electronic equipment |
-
2019
- 2019-06-27 CN CN201910568322.9A patent/CN112152658B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5870057A (en) * | 1994-12-08 | 1999-02-09 | Lucent Technologies Inc. | Small antennas such as microstrip patch antennas |
| CN101595595A (en) * | 2006-11-15 | 2009-12-02 | 皮尔金顿汽车德国有限公司 | Antenna connector |
| US20180109295A1 (en) * | 2016-03-03 | 2018-04-19 | Lg Electronics Inc. | Mobile terminal |
| CN105655706A (en) * | 2016-03-18 | 2016-06-08 | 广东欧珀移动通信有限公司 | Metal terminal rear cover and terminal |
| CN106357848A (en) * | 2016-10-11 | 2017-01-25 | 努比亚技术有限公司 | Protective casing |
| TW201909475A (en) * | 2017-07-18 | 2019-03-01 | 南韓商三星電機股份有限公司 | Antenna module and manufacturing method thereof |
| US20190051989A1 (en) * | 2017-08-11 | 2019-02-14 | Samsung Electro Mechanics Co., Ltd. | Antenna module |
| CN208127408U (en) * | 2018-04-28 | 2018-11-20 | Oppo广东移动通信有限公司 | Electronic device |
| CN208386865U (en) * | 2018-05-31 | 2019-01-15 | Oppo广东移动通信有限公司 | Wireless headset |
| CN108923119A (en) * | 2018-07-10 | 2018-11-30 | Oppo广东移动通信有限公司 | Electronic equipment |
| CN109103589A (en) * | 2018-08-12 | 2018-12-28 | 瑞声科技（南京）有限公司 | Antenna modules and mobile terminal |
| CN109616765A (en) * | 2018-12-25 | 2019-04-12 | 深圳市万普拉斯科技有限公司 | Antenna casing adjusting method, device and mobile terminal |
| CN209517229U (en) * | 2019-04-30 | 2019-10-18 | Oppo广东移动通信有限公司 | Electronic equipment |
Non-Patent Citations (1)
| Title |
|---|
| 赵伟等: "《一种毫米波低副瓣微带天线阵列的设计与仿真》", 《弹箭与制导学报》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112152658B (en) | 2022-07-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110137675B (en) | Antenna unit and terminal equipment | |
| RU2676211C1 (en) | Matched multi-band antenna in portable wireless devices | |
| EP3114728B1 (en) | Antenna device and electronic device having the antenna device | |
| US20220255240A1 (en) | Antenna module and electronic device | |
| EP3975335B1 (en) | Antenna unit and terminal device | |
| CN112234344B (en) | Antenna device and electronic apparatus | |
| CN112290193B (en) | Millimeter wave module, electronic equipment and adjusting method of millimeter wave module | |
| US11201394B2 (en) | Antenna device and electronic device | |
| KR101983552B1 (en) | Glasses Lens for Electromagentic Waves Antenna Beamforming, Antenna Apparatus and Electronic Device Having the Same | |
| CN111276792B (en) | Electronic device | |
| CN111129704B (en) | Antenna unit and electronic equipment | |
| CN113540804A (en) | Electronic device having dielectric resonator antenna with parasitic patch | |
| US11942674B2 (en) | Antenna structure and terminal device | |
| CN111864362A (en) | Antenna module and electronic equipment | |
| CN112397898A (en) | Antenna array assembly and electronic equipment | |
| US20220085493A1 (en) | Housing assembly, antenna device, and electronic device | |
| US20220094041A1 (en) | Housing assembly, antenna device, and electronic device | |
| CN109687124A (en) | A kind of Millimeter Wave Phased Array Antenna device and its implementation for mobile terminal | |
| CN111969304A (en) | Antenna structure and electronic equipment | |
| CN112152658B (en) | Electronic equipment and protective sleeve | |
| CN210054959U (en) | Protective sleeve | |
| CN111864343A (en) | Electronic device | |
| CN111900534B (en) | Antenna structure and electronic equipment | |
| CN114846694B (en) | Millimeter wave antenna chip and terminal equipment | |
| CN112310655B (en) | Electronic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |